Table 1 Patients demographic and clinical characteristics
Clinical variables | Low-dose group (n = 70) | High-dose group (n = 70) | p-value |
|---|---|---|---|
Female gender, n (%) | 52 (74.3) | 49 (70.0) | 0.575 |
Age (years), mean ± SD | 78.5 ± 9.3 | 80.1 ± 10.0 | 0.311 |
Body mass index (kg/m2), mean ± SD | 22.7 ± 3.6 | 22.5 ± 4.2 | 0.731 |
Charlson comorbidity index (CCI) | |||
 - 0–1 | 46 (65.7) | 47 (67.1) | 0.840 |
 - 2–3 | 23 (32.9) | 21 (30.0) |  |
 - >  3 | 1 (1.4) | 2 (2.9) |  |
Type of hip fracture, n (%) | |||
 - Intertrochanteric fracture | 34 (48.6) | 38 (54.3) | 0.112 |
 - Femoral neck fracture | 36 (51.4) | 32 (45.7) |  |
Treatment, n (%) | |||
 - Conservative | 1 (1.4) | 2 (2.9) | 0.691 |
 - Multiple screw fixation | 3 (4.3) | 2 (2.9) |  |
 - Dynamic hip screw fixation | 8 (11.4) | 4 (5.7) |  |
 - Intramedullary nailing | 30 (42.9) | 33 (47.1) |  |
 - Arthroplasty | 28 (40.0) | 29 (41.4) |  |
Previous functional status, n (%) | |||
 - Outdoor | 48 (68.6) | 40 (57.1) | 0.235 |
 - Indoor | 22 (31.4) | 30 (42.9) |  |
Pre-operative ambulatory status, n (%) | |||
 - Independent without gait aid | 43 (61.4) | 39 (55.7) | 0.372 |
 - Single cane | 16 (22.9) | 14 (20.0) |  |
 - Tripod cane | 3 (4.3) | 6 (8.6) |  |
 - Quad cane | 0 (0) | 0 (0) |  |
 - Pick up walker | 7 (10.0) | 8 (11.4) |  |
 - Wheel chair | 0 (0.0) | 2 (2.9) |  |
 - Bed bound | 1 (1.4) | 1 (1.4) |  |